#define _CRT_SECURE_NO_WARNINGS 1

#include <stdio.h>

int main()
{

	int year = 1000;

	while (year >= 1000 && year <= 2000)
	{
		if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0))
			printf("%d ", year);
		year++;
	}

	return 0;
}
